In Islam there is no church hierarchy no
priests, ministers, vicars, deans, or popes. When a Muslim prays
he prays directly to God not through any intermediary. When he
serves God he is not serving an institution but God alone. Every
human being is individually responsible for their own actions and
their own beliefs. No one can take that responsibility away from
you.

If you think that anyone is ordering you to
act against what you sincerely believe to be the will of God you
are duty bound to disobey that order and instead obey Allah. This
is the principle that

Allah is the sovereign

and follows directly from the shahada which
is the testifying that makes some one into a Muslim - namely:

Of course in coming to your conclusions
about what Islam teaches you will find it useful to consult those
who have studied the religion's sources carefully. These are the
scientists of the religion (in Arabic: 'ulema ud-din).
These scientists may have varying interpretations and opinions
but they all use essentially the same source material. This leads
us to another principle which is that